egl: add null platform
The null platform has no window or pixmap surface (but pbuffer surface). And the only valid display is EGL_DEFAULT_DISPLAY. It is useful for offscreen rendering. It works everywhere becase no window system is required.
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@ -94,6 +94,9 @@ endif
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ifeq ($(firstword $(EGL_PLATFORMS)),fbdev)
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EGL_NATIVE_PLATFORM=_EGL_PLATFORM_FBDEV
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endif
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ifeq ($(firstword $(EGL_PLATFORMS)),null)
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EGL_NATIVE_PLATFORM=_EGL_PLATFORM_NULL
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endif
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ifneq ($(findstring x11, $(EGL_PLATFORMS)),)
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LOCAL_CFLAGS += -DHAVE_X11_PLATFORM
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@ -107,6 +110,9 @@ endif
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ifneq ($(findstring fbdev, $(EGL_PLATFORMS)),)
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LOCAL_CFLAGS += -DHAVE_FBDEV_PLATFORM
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endif
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ifneq ($(findstring null, $(EGL_PLATFORMS)),)
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LOCAL_CFLAGS += -DHAVE_NULL_PLATFORM
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endif
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LOCAL_CFLAGS += \
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-D_EGL_NATIVE_PLATFORM=$(EGL_NATIVE_PLATFORM) \
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@ -73,6 +73,7 @@ static const struct {
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{ _EGL_PLATFORM_WAYLAND, "wayland" },
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{ _EGL_PLATFORM_DRM, "drm" },
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{ _EGL_PLATFORM_FBDEV, "fbdev" },
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{ _EGL_PLATFORM_NULL, "null" },
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{ _EGL_PLATFORM_ANDROID, "android" }
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};
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@ -44,6 +44,7 @@ enum _egl_platform_type {
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_EGL_PLATFORM_WAYLAND,
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_EGL_PLATFORM_DRM,
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_EGL_PLATFORM_FBDEV,
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_EGL_PLATFORM_NULL,
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_EGL_PLATFORM_ANDROID,
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_EGL_NUM_PLATFORMS,
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